Question

TO POI

How much heat must be added to 4.0 kg of water to raise its temperature by 8.0 degrees
Celsius? The specific heat of water is 1.0 kcal/kg°C.

Answer 1

• Mass=m=4kg
• Change in temperature=∆T=8°C
• Specific heat capacity=c=1kcal/kg°C

Now heat be Q

`\\ \rm\Rrightarrow Q=mc\Delta T`

`\\ \rm\Rrightarrow Q=4(1)(8)`

`\\ \rm\Rrightarrow Q=32cal`